The biggest mistake you can make the night before the Selectividad isn’t leaving a topic unreviewed: it’s not sleeping

The article argues that 7–8 hours of sleep before Selectividad is more valuable than cramming, because sleep strengthens memory and learning.

Neuroscience research shows sleep helps consolidate newly learned information, improving recall, attention, and concentration for exams.

Losing sleep before a test can reduce learning capacity and make it harder to remember what was studied.

A 2023 survey of 640 Universidad Autónoma de Madrid students found better sleep quality was linked to better academic results, while sleep debt hurt perceived performance.